Document
Cool-Power®
ZVS Switching Regulators PI33xx-x0
8V to 36VIN Cool-Power ZVS Buck Regulator Family
Product Description
The PI33xx-x0 is a family of high efficiency, wide input range DC‑DC ZVS-Buck regulators integrating controller, power switches, and support components all within a high density System-in-Package (SiP). The integration of a high performance Zero-Voltage Switching (ZVS) topology, within the PI33xx-x0 series, increases point of load performance providing best in class power efficiency. The PI33xx-x0 requires only an external inductor and minimal capacitors to form a complete DC-DC switching mode Buck Regulator.
Device
PI3311-x0 PI3318-x0 PI3312-x0 PI3301-x0 PI3302-x0 PI3303-x0 PI3305-x0
Output Voltage
Set Range
1.0V
1.0 to 1.4V
1.8V
1.4 to 2.0V
2.5V
2.0 to 3.1V
3.3V
2.3 to 4.1V
5.0V
3.3 to 6.5V
12V 6.5 to 13.0V
15V 10.0 to 16.0V
IOUT Max
10A 10A 10A 10A 10A 8A 8A
The ZVS architecture also enables high frequency operation while minimizing switching losses and maximizing efficiency. The high switching frequency operation reduces the size of the external filtering components, improves power density, and enables very fast dynamic response to line and load transients. The PI33xx-x0 series sustains high switching frequency all the way up to the rated input voltage without sacrificing efficiency and, with its 20ns minimum on-time, supports large step down conversions up to 36VIN.
Features & Benefits
• High Efficiency ZVS-Buck Topology • Wide input voltage range of 8V to 36V • Very-Fast transient response • High accuracy pre-trimmed output voltage • User adjustable soft-start & tracking • Power-up into pre-biased load (select versions) • Parallel capable with single wire current sharing • Input Over/Undervoltage Lockout (OVLO/UVLO) • Output Overvoltage Protection (OVP) • Overtemperature Protection (OTP) • Fast and slow current limits • -40°C to 125°C operating range (TJ) • Optional I2C™ * functionality & programmability:
■■VOUT margining ■■Fault reporting ■■Enable and SYNCI pin polarity ■■Phase delay (interleaving multiple regulators)
Applications
• High efficiency systems • High voltage battery operation
Package Information
• 10mm x 14mm x 2.6mm LGA SiP
* I2C™ is a trademark of NXP Semiconductors
Cool-Power® ZVS Switching Regulators Page 1 of 41
Rev 2.5 06/2017
Contents
Order Information
3
I2C™ Functionality & Programmability
3
Absolute Maximum Ratings
4
Functional Block Diagram
4
Pin Description
5
Package Pin-Out
5
PI3311-x0-LGIZ (1.0VOUT) Electrical Characteristics PI3318-x0-LGIZ (1.8VOUT) Electrical Characteristics PI3312-x0-LGIZ (2.5VOUT) Electrical Characteristics PI3301-x0-LGIZ (3.3VOUT) Electrical Characteristics PI3302-x0-LGIZ (5.0VOUT) Electrical Characteristics PI3303-x0-LGIZ (12.0VOUT) Electrical Characteristics PI3305-x0-LGIZ (15.0VOUT) Electrical Characteristics Functional Description
6 9 12 16 20 24 28 32
ENABLE (EN)
32
Remote Sensing
32
Switching Frequency Synchronization
32
Soft-Start 32
Output Voltage Trim
32
Output Current Limit Protection
33
Input Undervoltage Lockout
33
Input Overvoltage Lockout
33
Output Overvoltage Protection
33
Overtemperature Protection
33
Pulse Skip Mode (PSM)
33
Variable Frequency Operation
33
Parallel Operation
33
I2C Interface Operation
34
PI33xx-x0
Application Description
34
Output Voltage Trim
34
Soft-Start Adjust and Tracking
35
Inductor Pairing
36
Thermal Derating
36
Filter Considerations
36
Layout Guidelines
37
Recommended PCB Footprint and Stencil
38
LGIZ Package Drawing
39
Revision History
40
Warranty 41
Cool-Power® ZVS Switching Regulators Page 2 of 41
Rev 2.5 06/2017
Order Information
Cool-Power
PI3311-00-LGIZ PI3318-00-LGIZ PI3312-00-LGIZ PI3301-00-LGIZ PI3302-00-LGIZ PI3303-00-LGIZ PI3305-00-LGIZ
Output Range
Set Range
1.0V
1.0 to 1.4V
1.8V
1.4 to 2.0V
2.5V
2.0 to 3.1V
3.3V
2.3 to 4.1V
5.0V
3.3 to 6.5V
12V 6.5 to 13.0V
15V 10.0 to 16.0V
I2C™ Functionality & Programmability
Cool-Power
PI3311-20-LGIZ PI3318-20-LGIZ PI3312-20-LGIZ PI3301-20-LGIZ PI3302-20-LGIZ PI3303-20-LGIZ PI3305-20-LGIZ
Output Range
Set Range
1.0V
1.0 to 1.4V
1.8V
1.4 to 2.0V
2.5V
2.0 to 3.1V
3.3V
2.3 to 4.1V
5.0 V
3.3 to 6.5V
12V 6.5 to 13.0V
15V 10.0 to 16.0V
IOUT Max
10A 10A 10A 10A 10A 8A 8A
IOUT Max
10A 10A 10A 10A 10A 8A 8A
PI33xx-x0
Package
10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA
Transport Media
TRAY TRAY TRAY TRAY TRAY TRAY TRAY
Package
10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA 10mm x 14mm 123-pin LGA
Transport Media
TRAY TRAY TRAY TRAY TRAY TRAY TRAY
Cool-Power® ZVS Switching Regulators Page 3 of 41
Rev 2.5 06/2017
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